It's really great that Marketo has durable unsubscribe, and my team would love it if you also had durable email invalid.
We would love to be able to clean email invalids out of our Marketo instance, and know that we'd never email those folks again, even if they somehow got re-imported. (We have some teams that are more experienced with list imports and salesforce syncs than others).
Would it be possible to apply the same "durable" functionality to email invalid as is in place for unsubscribe?
Thank you!
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